Remove Glance v1 APIs tests

Glance v1 APIs were removed in Rocky and tempest master
does not support the Rocky release. If glance v1 APIs
needs to be tested for older release then older Tempest
can be used.

This removes the Glance v1 APIs tests, config option,
and its service clients.

Change-Id: I6741e2204de251ee8f16b0249a73bee5912c1135
diff --git a/tempest/common/waiters.py b/tempest/common/waiters.py
index 291f201..d3be6fd 100644
--- a/tempest/common/waiters.py
+++ b/tempest/common/waiters.py
@@ -16,12 +16,10 @@
 
 from oslo_log import log as logging
 
-from tempest.common import image as common_image
 from tempest import config
 from tempest import exceptions
 from tempest.lib.common.utils import test_utils
 from tempest.lib import exceptions as lib_exc
-from tempest.lib.services.image.v1 import images_client as images_v1_client
 
 CONF = config.CONF
 LOG = logging.getLogger(__name__)
@@ -156,17 +154,7 @@
     The client should have a show_image(image_id) method to get the image.
     The client should also have build_interval and build_timeout attributes.
     """
-    if isinstance(client, images_v1_client.ImagesClient):
-        # The 'check_image' method is used here because the show_image method
-        # returns image details plus the image itself which is very expensive.
-        # The 'check_image' method returns just image details.
-        def _show_image_v1(image_id):
-            resp = client.check_image(image_id)
-            return common_image.get_image_meta_from_headers(resp)
-
-        show_image = _show_image_v1
-    else:
-        show_image = client.show_image
+    show_image = client.show_image
 
     current_status = 'An unknown status'
     start = int(time.time())